Click to open expanded view

Active Autowerke GESI Catted Downpipe BMW G87 M2 / G80 M3 / G82 M4

SKU: 11-085
Price
$2,999.00
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

This Product Qualifies for Free Shipping

Need some product help?
Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

 

 

Unlock more of the S58’s performance and sound potential with the Active Autowerke Signature GESI Catted Downpipes. The restrictive factory downpipes create unnecessary backpressure immediately after the turbochargers, while Active Autowerke’s 3-inch high-flow design helps exhaust gases evacuate more efficiently for quicker turbo spool, sharper response, and increased power potential. At the heart of the system are oversized 4.5-inch GESI G-Sport Ultra High Output catalytic converters, providing exceptional flow while remaining fully OBD2 compliant and engineered specifically to prevent catalyst-efficiency check engine lights. Each catalyst is rated to support 500–850 horsepower, making these downpipes equally suitable for a lightly modified street car or a higher-output tuned S58 build. Best of all, no performance tune is required, making this an excellent choice for owners who want the performance and sound benefits of upgraded downpipes without the CEL concerns commonly associated with lower-quality high-flow cats.

Fitment Notes

  • Fits 2023+ BMW M2 Coupe (G87)
  • Fits 2021+ BMW M3 Sedan (G80)
  • Fits 2021+ BMW M4 Coupe (G82)
  • Designed for vehicles equipped with the S58 twin-turbocharged engine
  • Direct bolt-on installation with no cutting or welding required
  • Connects to the factory exhaust using a 70mm outlet, maintaining at least the factory tubing diameter throughout the system
  • Compatible with Active Autowerke G8X exhaust components
  • No performance tune required
  • Designed to operate without a catalyst-efficiency check engine light
  • GESI catalysts are EPA registered and compliant for OBD2 vehicles in 49 states; not CARB compliant for California use

Included

  • Driver-side Active Autowerke catted downpipe
  • Passenger-side Active Autowerke catted downpipe
  • Integrated GESI G-Sport Ultra High Output catalytic converters
  • Stainless steel flex joints
  • Cast stainless steel upper V-band connections

Product Specs

  • Active Autowerke SKU: 11-085
  • Primary Tubing Diameter: 3 inches
  • Exhaust Outlet Diameter: 70mm
  • Catalyst Diameter: 4.5 inches
  • Catalyst Density: 400 CPSI
  • Catalyst Type: GESI G-Sport Ultra High Output
  • Catalyst Power Rating: 500–850 HP per catalyst
  • Maximum Rated Temperature: 1,500°F
  • Catalyst Light-Off: capable of reaching operational efficiency within approximately 9 seconds
  • Downpipe Material: 304 stainless steel
  • Catalyst Construction: 304 stainless steel shell and substrate
  • Tubing Wall Thickness: 1.5mm
  • Construction: TIG welded
  • Made in Miami, Florida
  • GESI catalyst shell/tube-end warranty: 5 years / 50,000 miles
  • GESI catalytic core warranty: 2 years / 25,000 miles for the original purchaser
  • Excessive aftermarket burble programming can damage the catalytic cores and void catalyst warranty coverage

Product Features

  • 3-inch high-flow downpipes reduce post-turbo backpressure for quicker spool, improved response, and greater horsepower and torque potential
  • Premium 4.5-inch GESI catalysts combine excellent exhaust flow with proper emissions treatment and OBD2 functionality
  • Engineered specifically for no catalyst-efficiency CEL, eliminating one of the biggest compromises associated with typical aftermarket catted downpipes
  • Each catalyst supports 500–850 HP, providing plenty of headroom for modified and tuned S58 applications
  • Full 304 stainless steel construction, TIG welding, stainless flex joints, and cast V-band connections provide exceptional durability and precise fitment
  • No performance tune required, making these an excellent standalone upgrade or foundation for a complete G8X exhaust and performance package